VulnerabilityModified
CVE-2020-11888
python-markdown2 through 2.3.8 allows XSS because element names are mishandled unless a \w+ match succeeds.
MEDIUM 6.1EPSS 1.93%
Does this matter?
Lower severity and a low EPSS score (1.93%). Track it; it rarely justifies an emergency change on its own.
Description
python-markdown2 through 2.3.8 allows XSS because element names are mishandled unless a \w+ match succeeds. For example, an attack might use elementname@ or elementname- with an onclick attribute.
- CVSS 3.1
- 6.1 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
- EPSS
- 1.93% probability · 79th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-79
- Affected
- python-markdown2 project/python-markdown2
- Source
- cve@mitre.org
References
- http://lists.opensuse.org/opensuse-security-announce/2020-05/msg00031.html
- http://lists.opensuse.org/opensuse-security-announce/2020-05/msg00035.html
- https://github.com/trentm/python-markdown2/issues/348Exploit, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6XOAIRJJCZNJUALXDHSIGH5PS2H63A3J/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/AQLRBGRVRRZK7P5SFL2MNGXFX37YHJAV/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PN6QSHRFZXRQAYZJQ4MOW5MKIXBYOMED/
- http://lists.opensuse.org/opensuse-security-announce/2020-05/msg00031.html
- http://lists.opensuse.org/opensuse-security-announce/2020-05/msg00035.html
- https://github.com/trentm/python-markdown2/issues/348Exploit, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6XOAIRJJCZNJUALXDHSIGH5PS2H63A3J/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/AQLRBGRVRRZK7P5SFL2MNGXFX37YHJAV/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PN6QSHRFZXRQAYZJQ4MOW5MKIXBYOMED/
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.